prepare_data: Prepare the data for estimation
In edsandorf/cmdlR: Choice Modeling in R

prepare_data

R Documentation

Prepare the data for estimation

Description

The function checks that the data is supplied as a data.frame or tibble and that it contains an equal number of choice observations per individual.

Usage

prepare_data(db, str_id, str_ct, n_id, n_ct, cores, check_data)

Arguments

`db`	A `data.frame()` or `tibble()` containing the data
`str_id`	A character string giving the name of the id variable
`str_ct`	A character string giving the name of the ct variable
`n_id`	An integer giving the nubmer of respondents
`n_ct`	An integer giving the number of choice situations
`cores`	An integer indicating the number of cores to use in estimation
`check_data`	A boolean eqaul to TRUE if the code should skip the data checks on number of choice tasks per individual.

Details

NOTE: While padding allows the use of fast matrix operations, it may come at the cost of disproportionate memory use for large datasets with many observations and variables.